Revert "shellcheck: FIX: use $2 as seems intended in list_print"

$ ./kerl update releases
The available releases are:
cat: /home/travis/.kerl/otp_spaces: No such file or directory

This reverts commit 536e9f4895d1c1e91338228f2a73a1af5a6cfd42.

1 files changed, 3 insertions, 7 deletions

diff --git a/kerl b/kerl
index 7774dc0..aefbb7c 100755
--- a/kerl
+++ b/kerl
@@ -1435,11 +1435,7 @@ maybe_remove() {
 list_print() {
     if [ -f "$KERL_BASE_DIR/otp_$1" ]; then
         if [ "$(wc -l "$KERL_BASE_DIR/otp_$1")" != '0' ]; then
-            if [ -z "$2" ]; then
-                cat "$KERL_BASE_DIR/otp_$1"
-            else
-                cat "$KERL_BASE_DIR/otp_$2"
-            fi
+            cat "$KERL_BASE_DIR/otp_$1"
             return 0
         fi
     fi
@@ -1917,7 +1913,7 @@ case "$1" in
                 rm -f "${KERL_BASE_DIR:?}"/otp_releases
                 check_releases
                 echo 'The available releases are:'
-                list_print releases spaces
+                list_print releases
                 ;;
             *)
                 update_usage
@@ -1933,7 +1929,7 @@ case "$1" in
         case "$2" in
             releases)
                 check_releases
-                list_print "$2" space
+                list_print "$2"
                 echo "Run '$0 update releases' to update this list from erlang.org"
                 ;;
             builds)